Korea's richest woman heads retailer Shinsegae, once part of Samsung Group, founded by her late father, Lee Byung Chull. Still quotes her father's management aphorisms to her employees. Shinsegae has grand plans to expand into China and become one of the top 10 retailers in the world within 4 years. Upped her stake in Shinsegae by 150,000 shares last fall; now holds a 17% stake. Her powerful family has been caught up in a scandal in which they allegedly bought valuable art with Samsung money. Brother Lee Kun-Hee, also a billionaire, stepped down as Samsung chairman last year amid charges of corruption.